Improvement in cap-shearing blocks



. 2 Shee'ts--Sheet l. RICHARD COOK & THOMAS H A NFOR U.

Cap Shearing Block. l

i v Patented Oct. 3, 1871.

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is made to revolve easily on its axis.

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RICHARD COOK AND THOMAS HANFORD, OF NEW HARTFORD, NEW YORK.

IMPROVEMENT IN CAP-SHEARING BLOCKS.

Specification forming part of Letters Patent No. 119,449, dated October 3, 1871.

-object of our invention is to furnish a convenient device for presenting the circular surface of the cap, both the body and the crown, to the blades of the common cloth manufacturers shears, driven by power, and revolving the cap in contact with the shearsin motion to shear the cap, both the body and the crown, in a neat, uniform, and expeditious manner.

In the annexed drawing, A, Figure 1, is an end view of our shearing-block, including its hangings and base or pedestal. It is hollow, as shown, and supported by the interior radiating-arms B; or it may be made solid, and of wood or metal. The drawing exhibits the cap drawn on over the block, as shown by the double line C, Fig, 1, on the surface. The opposite end of the block, in order to correspond with the crown of the cap, is conical in form, as shown at D, Fig. 2. This latter figure exhibits a vertical section of the l block. E is the cylindrical part of the block, and

D the conical portion or crown. G is the cap, drawn over the block from the conical end and extending back to H, as seen. I is the platform or base; J, the supporting-standard 5 K, the axle, with a bearing at L and another at M. The block Its movement is slow, being gently revolved by hand. Its position in reference to the shears is shown in Figs. 3 and 4. N is the common spiral clothshearer, which is rotated by power. bearing-boxes; P, its shaft 5 and R S,a tight and loose pulley for the application of the drivingbelt. E is the shearing-block, with the cap to be sheared drawn over it from the conical end D and covering the block as far back as the point H. The leger-blade, being the stationary edge on which the circular shears cut, is seen projecting at the right and left at T T. The iron pedestal I and the frame sustaining the block, more clearly shown in Fig. 2, are made heavy with a view to' the steadiness of the block when in use.

The shears being in rapid motion the block is moved up to them by hand to a suitable position for shearing the cap, and is then rotated slowly by hand, as the shears are doing their work, until the body of the cap is completely sheared, the block is then withdrawn and turned to the position shown in Fig. 4 for the purpose of shearing the conical surface D of the crown of the cap. The block being in position for this purpose is again rotated as before until the crown is sheared.

In order to soften the angle at U, giving the crown of the cap a more rounded appearance, the crown of the block may be made of two or more planes, as indicated by the adjoining dotted lines; in which case each of the planes is presented to the shears and shorn separately. The block may also be made double or conical at each end for the reception of two caps at a time. In that case there is, as in the ordinary turninglathe, an adjustable supporting-standard at one end with a sharp point presented to and slightly penetrating the apex of the cone, sufficiently to support the block; and the iixed standard at the opposite end has a like point to penetrate in like manner the p oint of the opposite cone. When the block is thus suspended the adjustable standard is secured in the manner of the turning-lathe and the block is manipulated for the shearing of each cap, as before described.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- The cap-shearing block E, axle K, standard J, and platform I, arranged, combined, and operated as and for the purposes shown and described.

RICHARD COOK. THOMAS HANFORD.

Witnesses:

WILLIAM BAIGDR, CHARLES BARNUM. j 

